Home / 47,945.05-71,917.50-12,884.70

Finding the Fourth Proportional to 47,945.05, 71,917.50 and 12,884.70

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Solution

The fourth proportional to 47,945.05, 71,917.50 and 12,884.70 is: 19,327.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,945.05 : 71,917.50 = 12,884.70 : x
  2. Step 2: Convert to fraction form
    47,945.05/71,917.50 = 12,884.70/x
  3. Step 3: Cross multiply
    47,945.05x = 71,917.50 × 12,884.70
  4. Step 4: Simplify right side
    47,945.05x = 926,635,730.26
  5. Step 5: Solve for x
    x = 926,635,730.26/47,945.05
  6. Step 6: Final answer
    x = 19,327.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.